Bosch Rexroth | PVV51-1X139-027RA15DDMC
PVV51-1X/139-027RA15DDMC
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The PVV51-1X/139-027RA15DDMC is a hydraulic pump produced by Bosch Rexroth within the PV Fixed Displacement Pumps series. It delivers a constant volume of oil to automation systems that require synchronized fluid movement. The unit rotates clockwise, so it suits right-hand drive arrangements. A cylindrical A drive shaft permits direct coupling to electric motors without special adapters, while the SAE-C (127-2) mounting flange aligns with common bell housings. The assembly weighs 43 kg, so rigid support is needed in the power unit frame. Maximum speed is limited to 1800 rpm, defining the top operating range for the prime mover. The cover section displaces 27.4 cm³ per revolution, and the flange section displaces 138.6 cm³ per revolution, giving designers two fixed delivery rates in a compact housing.
At 1500 rpm the cover stage delivers a maximum of 39 l/min, providing a moderate flow for pilot or auxiliary circuits, whereas the flange stage reaches 203 l/min to supply high-volume actuators. The cover outlet tolerates pressures up to 210 bar, and the flange outlet withstands 175 bar, allowing the pump to serve circuits with different pressure demands from a single shaft. Input torque must not exceed 610 Nm, which guides motor and coupling selection. The cover pressure port is sized SAE 3/4 in; the flange pressure port is SAE 1 1/2 in, so piping can be matched to flow levels. A common suction port of SAE 3 1/2 in limits inlet velocity and avoids cavitation. NBR seals are fitted to contain mineral oil at the stated pressures and temperatures.
Technical Specifications
Direction Of Rotation
Clockwise
Displacement (cover Section)
27.4 cm³/rev
Displacement (flange Section)
138.6 cm³/rev
Drive Shaft Type
Cylindrical (A)
Flange Version
SAE-C (127-2)
Max Flow (cover @1500 Min⁻¹)
39 l/min
Max Flow (flange @1500 Min⁻¹)
203 l/min
Max Outlet Pressure (cover Section)
210 bar
Max Outlet Pressure (flange Section)
175 bar
Max Shaft Torque (a Shaft)
610 Nm
Max Speed
1800 min⁻¹
Pressure Port Size (cover Side)
SAE 3/4 in
Pressure Port Size (flange Side)
SAE 1 1/2 in
Seal Material
NBR
Suction Port Size
SAE 3 1/2 in
Weight
43 kg
1620 Old Apex Road
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